Ionia Weather Forecast

    • 65
    • 80

    Partly Sunny

    • 61
    • 84

    Rain Showers

    • 58
    • 74

    Mostly Sunny

    • 66
    • 83

    Mostly Cloudy

    • 62
    • 83

    Rain Showers Likely

    • 59
    • 75

    Chance Rain Showers

Today 17 Jul Ontario

Mostly sunny. Highs Ranging from the upper 70s on the Hilltops to the lower 80s across the lower Elevations. Light northwest Winds.

Tonight 17 Jul Ontario

Partly to mostly cloudy. Patchy smoke. Lows around 60. Light Winds.

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Ionia Temperature Statistics

July Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 12 July, 2026

    55.7 °F

  • Average July

    76 °F

  • Highest 1 July, 2026

    94.6 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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